Fairfax, SD Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Fairfax, SD in one place.
Clear, with a low around 67. South wind around 15 mph, with gusts as high as 30 mph.
Local Weather Overview
This forecast page for Fairfax, SD is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 2:47 AM CDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for Fairfax, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 2:47 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Fairfax
Friday looks like the warmest upcoming period in Fairfax at 99 degrees F.
Overnight is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 20 mph S.
The forecast from Jul 14 through Jul 20 stays mostly dry.
Forecast Details
- Last updated
- Jul 14, 2026 2:47 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KLNX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 94. South wind 10 to 20 mph, with gusts as high as 25 mph.
Clear, with a low around 67. South wind 5 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 94. South wind 5 to 15 mph, with gusts as high as 25 mph.
Clear, with a low around 69. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 97. South wind 10 to 20 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 73.
Sunny, with a high near 99.
Mostly clear, with a low around 73.
Sunny, with a high near 98.
Mostly clear, with a low around 70.
Mostly sunny, with a high near 95.
Partly cloudy, with a low around 69.
Mostly sunny, with a high near 92.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 14
|
Clear
|
67°F |
15 mph
S
|
|
Tuesday
Jul 14
|
Sunny
|
94°F |
10 to 20 mph
S
|
|
Tuesday Night
Jul 14
|
Clear
|
67°F |
5 to 15 mph
S
|
|
Wednesday
Jul 15
|
Sunny
|
94°F |
5 to 15 mph
S
|
|
Wednesday Night
Jul 15
|
Clear
|
69°F |
10 to 15 mph
S
|
|
Thursday
Jul 16
|
Sunny
|
97°F |
10 to 20 mph
S
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
73°F |
10 to 15 mph
SSW
|
|
Friday
Jul 17
|
Sunny
|
99°F |
10 to 15 mph
SW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
73°F |
5 to 10 mph
SSW
|
|
Saturday
Jul 18
|
Sunny
|
98°F |
5 to 10 mph
NNE
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
70°F |
5 to 10 mph
SE
|
|
Sunday
Jul 19
|
Mostly Sunny
|
95°F |
5 to 15 mph
E
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
69°F |
10 to 15 mph
S
|
|
Monday
Jul 20
|
Mostly Sunny
|
92°F |
10 to 15 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fairfax.